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430640120 = 23510766003
BaseRepresentation
bin11001101010110…
…000101111111000
31010000022210012002
4121222300233320
51340220440440
6110422040132
713446244361
oct3152605770
91100283162
10430640120
112010a3329
12100279048
136b2aba51
144129cb68
1527c17115
hex19ab0bf8

430640120 has 16 divisors (see below), whose sum is σ = 968940360. Its totient is φ = 172256032.

The previous prime is 430640113. The next prime is 430640131. The reversal of 430640120 is 21046034.

It is a happy number.

It is a super-2 number, since 2×4306401202 = 370901825907228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 430640092 and 430640101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5382962 + ... + 5383041.

Almost surely, 2430640120 is an apocalyptic number.

430640120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

430640120 is an abundant number, since it is smaller than the sum of its proper divisors (538300240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

430640120 is a wasteful number, since it uses less digits than its factorization.

430640120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766014 (or 10766010 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 430640120 is about 20751.8702771582. The cubic root of 430640120 is about 755.1585825387.

Adding to 430640120 its reverse (21046034), we get a palindrome (451686154).

The spelling of 430640120 in words is "four hundred thirty million, six hundred forty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 10766003 21532006 43064012 53830015 86128024 107660030 215320060 430640120